Senior Systems HPC Engineer

In this role you will - Focus on understanding system behavior across multiple layers, identifying performance bottlenecks, and driving improvements that shape how our clusters are built, operated, tuned, and validated. - Investigate and troubleshoot performance issues of GPU cluster under real workloads (training and inference) - Evaluate and integrate new hardware, system configurations and tuning approaches through software stack - Support complex performance-related escalations from internal teams and customers - Work closely with infrastructure, software engineering and hardware vendor teams (e.g. NVIDIA, Mellanox, Intel) - Contribute to hardware and cluster qualification (acceptance), ensuring systems meet performance expectations We expect you to have: - 5+ years of professional experience in system-level software development (focused on performance optimization, low-level programming). - 3+ years of hands-on experience with Linux systems (administration, troubleshooting, and performance tuning). - In-depth understanding of server architecture, including PCIe devices, NICs, Linux OS/Kernel, and high-performance computing (HPC) systems. - Strong proficiency in one or more performance-oriented programming languages (C/C++, Go, Python…

Listed on Nasdaq (NBIS) and headquartered in Amsterdam, we have a global footprint with R&D hubs across Europe, the UK, North America and Israel. Our team of 1,500+ includes hundreds of engineers with deep expertise across hardware, software and AI R&D. We are looking for a Senior Systems HPC Engineer to play a key role in building our hyperscaler platform, working across its core components while analyzing and optimizing the performance of large-scale GPU clusters at the intersection of hardware and software. You will operate across the full stack-from hardware and system software to networking (InfiniBand/RoCE), virtualization (KVM/QEMU), and distributed communication layers (e.g., MPI, NCCL).